Energy-dense liquid fuel intermediates by pyrolysis of guayule (Parthenium argentatum) shrub and bagasse
Energy-dense liquid fuel intermediates by pyrolysis of guayule (Parthenium argentatum) shrub and bagasse
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DOI：
10.1016/j.fuel.2009.05.023
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发表时间：
2009-11-01
期刊：
影响因子：
7.4
通讯作者：
Cornish, Katrina
中科院分区：
文献类型：
--
作者：
Boateng, Akwasi A.;Mullen, Charles A.;Cornish, Katrina
银胶菊是一种生长在美国西南部的多年生灌木，用于生产高质量的天然胶乳。然而，只有大约10%的植物材料用于乳胶生产；剩余的生物质，被称为甘蔗渣，可以用于可再生燃料的生产。对银胶菊、全灌木和甘蔗渣进行了快速热解。在没有任何催化剂的情况下，从这两种原料中生产出非常粘稠、高能量含量（类似于30 MJ/kg）的热解液体（生物油），平均产率超过60%。在两种原料中，生物油的性质和组成相似。副产品，木炭（20-30 wt%）和不可冷凝气体（5-15%），也密度大，能量含量高。在这两种原料中，整个灌木产生的木炭数量也比甘蔗渣产生的木炭具有更高的能量含量。因此，以能量产品的百分比估计，胶菊甘蔗渣的能量回收率（60%）低于整个灌木的能量回收率（73%）。尽管如此，甘蔗渣是一种更有吸引力的热化学转化原料，不仅因为它是现场初级过程（乳胶提取）的残留物，而且因为它具有高能量含量。此外，它还能产生高质量的热解产物。从整个灌木和通过热解从残甘蔗渣中提取可再生燃料联合生产胶胶菊胶乳橡胶应该会改善已经积极的经济效益。Elsevier Ltd.出版。
Guayule is a perennial shrub grown in the southwestern United States that is used to produce high quality, natural rubber latex. However, only about 10% of the plant material is used for latex production; the remaining biomass, called bagasse, can be used for renewable fuel production. Fast pyrolysis of guayule, both whole shrub and bagasse was performed. From both feedstocks a very viscous, high energy content (similar to 30 MJ/kg) pyrolysis liquid (bio-oil) was produced in yields averaging over 60% without any catalyst. The properties and compositions of the bio-oils were found to be similar in the two feedstocks. Co-products, charcoal (20-30 wt%) and non-condensable gas (5-15%), were also dense and had a high energy content. Of the two feedstocks, the whole shrub yielded higher quantities of charcoal that also had a higher energy content than the charcoal produced from bagasse. As a result, the energy recovery, estimated as the percentage of the energy products, to energy input into the reactor was lower (60%) for guayule bagasse than for the whole shrub (73%). This notwithstanding, the bagasse is a more attractive feedstock for thermochemical conversion, not only because it is a residue from a primary process (latex extraction) that is on-site, but also because it has a high energy content. Moreover, it produces high quality pyrolysis products. Co-production of latex rubber from the whole shrub and renewable fuels from the residual bagasse by pyrolysis should improve the already positive economics of the guayule latex rubber industry. Published by Elsevier Ltd.